SPCA50X_REG_USB
reg_write(gspca_dev, SPCA50X_REG_USB, 0x6, 0x94);
reg_write(gspca_dev, SPCA50X_REG_USB, 0x07, 0x004a);
reg_write(gspca_dev, SPCA50X_REG_USB, 0x07, 0x104a);
reg_write(gspca_dev, SPCA50X_REG_USB, 0x07, 0x204a);
return reg_write(gspca_dev, SPCA50X_REG_USB,